CEE Model Exam 13Super100 CEEFebruary 25, 2026CEE model exam Welcome to your CEE Model Exam 13 Name Email Roll no 1. Jelly like medium in tissue culture is contributed by: Suberin Wax Agar Gel None 2. Epipetalous stamen & axile placentation are characteristics of: Liliaceae Solanaceae Gramineae Brassicaceae None 3. Photorespiration occurs in: Chloroplast & Peroxisome Lysosome Peroxisome & Mitochondria Chloroplast, Peroxisome & Mitochondria None 4. Which of the following component of plants have no nucleus? Companion cells Sieve tube Pith Cambium None 5. Total number of haploid nuclei in an embryo sac is 4 8 6 3 None 6. Gaseous exchange in submerged plant occurs by: Hydathodes Lenticels Stomata General surface None 7. The same species differ by geographical isolations is: Allopatry Sympatry Sibling Twins None 8. Discontinuous replication of DNA occurs in which strand? Complimentary Leading Lagging Continuous None 9. Prokaryotic structure is present in: Ulothrix Nostoc Spirogyra Chlamydomonas None 10. Increase in concentration of CO₂ around leaf results in: Rapid opening of stomata Rapid closure of stomata Partial closure of stomata No effect on stomatal opening None 11. Sugarcane shows high efficiency of CO₂ fixation because it performs Calvin cycle EMP pathway Hatch & Slack pathway TCA cycle None 12. Hybridization followed by polyploidy is called as: Autopolyploidy Allopolyploidy Aneuploidy Euploidy None 13. Embryophytic plant not containing vascular bundle is: Bryophyte Pteridophyta Angiosperm Algae None 14. Independent alternation of generation is found in: Gymnospermae Pteridophyta Angiospermae Bryophyte None 15. Red algae and BGA are similar in Mode of reproduction Reserve food Cell wall Phycobillins None 16. The rate at which light energy is converted into chemical energy of organic molecules in the ecosystem is: Gross primary productivity Net primary productivity Gros secondary productivity Net secondary productivity None 17. According to Bentham & Hooker system of classification, Gymnosperm is placed After dicot Before monocot Between monocot & dicot Excluded from angiosperms None 18. Which of the following plant help in nitrogen fixation? Rice Bean Maize Wheat None 19. In relationship in which one get benefit without affecting other is called Parasitism Commensalism Symbiosis Mutualism None 20. Which of the plant crop grows easily in nitrogen deficient soil? Helianthus Gossypium Solanum Cajanus cajan None 21. Which hormone is indispensable for cell division? Auxin Gibberellin Cytokinin Ethylene None 22. The only dicot plant having isobilateral leaves is Eucalyptus Wheat Mango Banyan None 23. Which biological molecules always contain the element nitrogen? Amino acid, cellulose, mRNA Enzymes, mRNA, Amino acids Amino acids, DNA, Lipids Membrane proteins, starch, tRNA None 24. Which of the following moves towards the tip of root hair arising from the epidermal cells? Cytoplasm Nucleus Mitochondria Ribosome None 25. The fusion between mother cells with daughter/sister cells in yeast is : Pedogamy Pseudogamy Adelphogamy Conjugation None 26. Polymerase chain reaction (PCR) Makes many copies of DNA Is a technique to culture in laboratory Treats cancer Detect antibodies in human plasma None 27. Which food is used by fungal partner made by algal partner in lichen? Starch Mannitol Glycogen Sugar None 28. Prokaryotic cell differs from higher plant cell wall in having pectin Lignin Murein Cellulose None 29. Manganese is largely found in Ribosomes Mitochondria Chloroplast Cell wall None 30. Large size of thylakoid is called Stroma lamella Grana lamella Grana Loculus None 31. Inner layer of exine is: Endexine Sexine Nexine Tectum None 32. Which of following occurs in metaphase? All the chromatids lie at same plane Chromosomes get condense Cell does not divide Nucleus and nuclear membrane reappear None 33. DNA differ from RNA in Purine Phosphate Sugar All None 34. Plants growing in Savannah biome is called: Psilophytes Psammophytes Oxylophytes Eremophytes None 35. Movement of water along with minerals from topsoil to subsoil is Percolation Leaching Conduction Squeezing None 36. Tallest Pteridophytes is Alsophila Cyathea Pteris Dryopteris None 37. The red algae which is not red and not marine is Trichodesmium erythrium Batrachospermum Polysiphonia Gracillaria None 38. Gene mutation occurs during DNA replication Cell division DNA repair RNA transcription None 39. Endosperm of gymnosperm is Haploid Diploid Triploid None None 40. Phylloclade is present in Opuntia Asparagus Orchids Hydrilla None 41. Pseudocoelom is present in: Aschelminthes Platyhelminthes Annelida Arthropoda None 42. Ora-serrata is a part of: Cornea Sclera Retina Conjunctiva None 43. Parasite found in the seminal vesicle of Earthworm is Monocystis Nystagmus Nosema Amphibians None 44. pH of the body is: 7.22 - 7.32 7.35 - 7.45 6.8 - 6.9 8 - 8.2 None 45. Eustachian tube is present between: Pharynx and middle ear Pharynx and internal ear Right auricle & Right ventricle Left auricle & Left ventricle None 46. Sexual cycle of Plasmodium occurs in: Salivary gland of mosquito Gut of mosquito Blood of man Liver cells None 47. Neurotransmitter released from postganglionic sympathetic innervated sweat gland is: Epinephrine Acetylcholine Norepinephrine Dopamine None 48. Which fish bears lungs? Protopterus Scoliodon Labeo Anguilla None 49. The egg in which yolk is present at one end is: Microlecithal Macrolecithal Homolecithal Telolecithal None 50. Leydig cells are present in: Ventricles of heart Ventricle of brain Connective tissue of testes Bartholin's gland None 51. Axis vertebrae differ from atlas in having: Odontoid process Olecranon process Metacromion process Cnemial crest None 52. Respiratory muscles present in frog are External & internal coastal muscles Diaphragm Phrenic muscle Sternohyal & Pterohyal muscle None 53. Blood flukes refer to: Genus of Schistosoma Genus of Fasciola Echinococcus granulosus Genus of Dugesia None 54. Bat never forgets its path due to Reverberation Memory Echolocation Vision None 55. Number of spermatozoa formed by single primary spermatocyte is: 1 2 4 3 None 56. Darwin's theory includes all of the following but was unable to explain much satisfactorily: Struggle for existence Variation Overproduction Natural selection None 57. Cushing syndrome is due to defect in Adrenal medulla Adrenal cortex Pancreas Liver None 58. Which of the following characterizes chordates? A ventral heart with dorsal blood vessel A dorsal heart with ventral blood vessel A ventral heart with dorsal & ventral blood vessel A dorsal heart with dorsal & ventral blood vessel None 59. Nails & hoofs are derivatives of: Hair Keratin Eleidin Fibrin None 60. Most distinguishing feature of eutherian mammals Presence of pinna Presence of diaphragm Presence of placenta Presence of nipples None 61. Ridges & fingerprints are derived from: Dermal papillae Stratum germinativum Stratum corneum Stratum spinosum None 62. On smoking, oral cancer is due to: Nicotine Tar Polycyclic aromatic hydrocarbon Carbon monoxide None 63. Kiwi, ostrich & penguin have a common character. Running birds Have no beak Have no legs Flightless birds None 64. CO is poisonous to human due to: Carcinogenic nature Higher affinity to Hb Lower affinity to Hb Due to acidic nature None 65. Embryologists can presume the future organs of the embryo in: Blastula Pre-gastrula Morula Post-gastrula None 66. Setae in earthworm is absent in First, last and clitellar segment Second segment Ninth segment Clitellar segment None 67. Zymogen cells of stomach produce: HCl Pepsinogen Pepsin Amylase None 68. Organ transplantation within same species is Autograft Allograft Xenograft Isograft None 69. Formation of RBC in adult human occurs in: Bone marrow Liver Spleen Yolk sac None 70. Biogenetic law that "Ontogeny recapitulates phylogeny" means All living being arise from egg Offsprings are similar to their parents Shows evolutionary history Shows sexual dimorphism None 71. Cells of cartilage are Chondroblast Osteoblast Fibroblast Goblet cell None 72. Cilia is present in Alveoli Oesophagus Bronchioles Intestine None 73. Infective stage of Plasmodium is: Sporozoite Trophozoite Merozoite Cryptozoite None 74. Phagocytosis is the important process in our body to destroy parasites. This process is the function of Basophils Eosinophils Neutrophils Lymphocytes None 75. Excretory organ of Mollusca is Kidney Nephridia Solenocytes Flame cell None 76. Chloragogen cell of earthworm is analogous to Kidney Liver Lung Stomach None 77. Honey comb like structure in the stomach of ruminant is: Rumen Reticulum Omasum Abomasum None 78. Avian influenza is Type A Type B Type C Type D None 79. Spines and warts are adaptational features of Terrestrial Volant Aquatic Arboreal None 80. Dengue fever is a vector disease. Dengue is commonly caused by Aedes aegypti Flavivirus Rhinovirus Rotavirus None 81. Capillary tube A & B having diameter of A > B is dipped vertically in a beaker, then rise of water will be maximum for: A B Equal in both Water does not rise up None 82. When antimony is doped in pure germanium (or silicon), then the resulting semiconductor will be N-type P-type N-P-N type P-N-P type None 83. At what depth, the value of 'g' is same to that of 'g' at a height 10 km? 20 km 10 km 40 km 80 km None 84. A train of length 150 m crosses a bridge of 1.5 km with a velocity 60 km/hr. Find the time taken to cross the bridge completely. 9.9 sec 99 sec 9 sec 90 sec None 85. The intensity of wave gets reduced by 20% on passing through a slab. The reduction in intensity on passing through two such slabs is: 64 % 36 % 20 % 50 % None 86. Angular momentum in 5th Bohr's orbit is given by: 5h/π 2.5h/π 10h/π 2h/π None 87. A convex lens is inserted between screen and object. The size of image obtained at the screen is either 6 or 2/3 cm. Then the size of the object is: 1/4 2 1/8 4 None 88. A man can clearly see upto 40cm. Then the power of lens that should be prescribed for him is: +2.5D -2.5D +1.25D -1.25D None 89. A balloon of weight 300N is moving upward. Volume of balloon is 30 m³ and displacing air of density 1.2 kg/m³. Then the force that carries the balloon upward is: 360N 60N 230N 400N None 90. Four truck each of masses 'm' are sticked together & remains at rest. Another truck of mass '2m' moving with velocity 5m/sec collides & stick together. Find their combined velocity. 2 m/sec 5/3 m/sec 5/6 m/sec 4 m/sec None 91. Galvanometer constant of tangent galvanometer depends upon: Resistance of coil Earth magnetic field Magnetic field of galvanometer Current in the coil None 92. A potentiometer is used to measure the emf of a cell & it is found 50 cm as balancing length for 1.02 volt battery. Now, if the battery is replaced & balancing length is found to be 75 cm. Then emf of the new battery is: 1.53V 2.25V 3.5V 2V None 93. Two moving coil galvanometers A and B using the spring of same spring constant and same area of each turn have 20 turns & 10Ω and 10 turns & 4Ω respectively. The ratio of their voltage sensitivity is: 1.5 3 1.25 5 None 94. A particle is rolling in a platform with the velocity of centre of mass as √2 m sec⁻¹. What is the velocity of particle on the rim at the same height of centre of mass? 2 0 2√2 1 None 95. The threshold wavelength of metal having work function 2.8 eV is: 433 Å 4433 Å 4400 Å 5143 Å None 96. Bending of tap water towards the rod is due to: Magnetic field Electrodynamic charge Electrostatic charge Doesn't bend None 97. A resistor having resistance 10KΩ is connected in series with the capacitor of capacitance 0.5 µF. If current in the conductor is 1.5 mA & angular frequency is 100 rad/sec then Vrms across capacitor is: 130V 150V 30V 1500V None 98. A bulb is rated at 100 V, 220 W, when the voltage drops by 2%, then change in power of bulb is Increases by 2% Increases by 4% Decreases by 2% Decreases by 4% None 99. If critical angle for water-air interface is θ, then angle subtended at eye of fish under water to see object outside water clearly is: 2θ θ θ/2 θ/4 None 100. A body is moving in a circular path of radius 30 m. Calculate the maximum velocity for no skidding from road. (Meu=0.4, g= 10m/s^2) 11m/s 21m/s 15m/s 20m/s None 101. Highest penetrating power is of α-ray β-ray X-ray γ-ray None 102. . Which elementary particle is a lepton? Electron Neutron Proton Quark None 103. Potential energy source for inducing nuclear fusion X-ray Laser Ultraviolet Microwave None 104. When dipole is rotated by 180° from stable equilibrium, the work done will be: 2MB MB √2MB MB/√2 None 105. A thin rod of length f/3 is placed along the optical axis of a concave mirror of focal length f such that its image which is real and elongated just touches the rod. The length of the image is f/2 f 3f/4 2f/3 None 106. Lenz law follows the conservation of: Charge Energy Momentum Mass None 107. A body moves such that u = at, the displacement travelled by it in first 4 second is: 8a 4a 2a 12a None 108. Which region of the electromagnetic spectrum includes waves with a frequency of 10⁷ MHz? Ultraviolet waves Radio waves Infra-red waves X-rays None 109. Two opposite corners of a square contain equal charges Q and other opposite corners contain charge q. The net force on Q is zero if: Q=-2q Q=+2q Q=-2√2q Q = 2√2q None 110. The time period of a satellite orbiting in circular orbit around the Earth is independent of: Both mass of the satellite and radius of its orbit Radius of its orbit The mass of the satellite Neither the mass of the satellite nor the radius of its orbit None 111. A cylindrical piece of a soft, electrically-conducting material has resistance R. It is rolled out so that its length is doubled but its volume stays constant. What is its new resistance? R/2 4R 2R R None 112. A nucleus containing Z protons and N neutrons has mass M. If the mass of the proton is mp and that of neutron is mn, then the mass defect of the nucleus is: Zmp + Nmn − M M − Zmp − Nmn M − Zmp + Nmn Zmp + Nmn + M None 113. The velocity of sound is generally greater in solids than in gases because: The density of solid is high but the elasticity is low Both the density and elasticity of solids are low Elasticity of solid is very high The density of solid is low but the elasticity is high None 114. In an isothermal condition Heat given by surrounding is equal to work done Heat given by surrounding is equal to internal energy There is no heat loss to the surrounding All None 115. Imaginary lines having constant value of dip angle are called ........ lines. Isobaric Isogonic Isoclinic Isodynamic None 116. An object is placed at a distance u from a simple microscope of focal length f. The angular magnification depends On f but not on u On u but not on f On f as well as u Neither on f and u None 117. In Radioactivity Half life and mean life is: ln2/λ , 1/λ 1/λ , ln2/λ 1/ln(2) ln2/λ , λ None 118. Unit of coefficient of viscosity is N/(m² s⁻¹) Nm² s⁻¹ Nm²/s Nm²/s² None 119. Ratio of the rms velocity of H₂ molecule to the He atom at the same temperature is √2 : 1 2:1 1:2 6:1 None 120. Which of the following is correct relationship? Cv − Cp = R Cp/Cv = R Cp − Cv = R Cv × Cp = R None 121. A cylindrical block of wood has cross-sectional area A and weight W. It is totally immersed in water with its axis vertical. The block experiences pressures pt and pb at its top and bottom surfaces respectively. Which expression is equal to the upthrust on the block? (pb − pt) (pb − pt)A (pb − pt)A − W (pb − pt)A + W None 122. The maximum wavelength that can be set in a stretched string of length ‘l’ is L/2 2L 4L L/4 None 123. On doubling the frequency of R-C circuit, impedance Decreases Increases Remain same Doubles None 124. A charged particle is in the electric field between two horizontal metal plates connected to a battery, as shown. There is a force F on the particle due to the electric field. The separation of the plates is doubled. What is the new force on the particle? F/4 F/2 F 2F None 125. Energy band on solid is given by Ohm’s law Pauli’s exclusion principle Bohr’s theory Heisenberg’s uncertainty principle None 126. A current of ‘I’ flows in an electric circuit having a cell of emf E and internal resistance ‘r’. The terminal pd across the end of cell is: E + Ir E − Ir E + IR Zero None 127. A gas absorbed 150J of heat and does a work of 50J of expansion. What is the change in internal energy of the gas? -10J 50J 100J 150J None 128. If uncertainty in position of a particle is equal to de-Broglie wavelength λ, the uncertainty in momentum of the particle is h/λ 2h/3λ 2h/λ 3h/2λ None 129. The direction of the two forces 6 N and 2 N acting on a body of mass 2 kg, the minimum acceleration of the body cannot be less than 2 m/s² 3 m/s² 2.5 m/s² 4 m/s² None 130. At the same temperature, pressure and volume of two gases, which of the following quantities is constant? Total number of molecules Root mean square velocity Average kinetic energy Mean free path None 131. B, C, E, G, K, M, ? N O P Q None 132. Nepal : rupee :: Malaysia : ? Dinar Bath Rial Ringgit None 133. In a certain code language "Tu Fu Ya" means "I do medicine", "Ru Ki Fu" means "You do politics" and "Pi Yan Ru" means politics is bad. Now say which of the following is medicine. Ti Yan Ya None None 134. Oplus_131072 A B C D None 135. Oplus_131072 A B C D None 136. Oplus_131072 A B C D None 137. A B C D None 138. Oplus_131072 A B C D None 139. Oplus_131072 A B C D None 140. A B C D None 141. Oplus_131072 A B C D None 142. A B C D None 143. Oplus_131072 A B C D None 144. Oplus_131072 A B C D None 145. A B C D None 146. A B C D None 147. A B C D None 148. Oplus_131072 A B C D None 149. 100 cats kill 100 mice in 100 days. How many days does it take for 4 cat to kill 4 mice 4 25 75 100 None 150. Before 10 years, sambidas age was four times the age of her daughter. After 10 years sambidas age will be double the age of her daughter. What is the present age of her daughter? 20 22 24 26 None 151. Which of the following have the maximum bond angle? sp² sp³ dsp² sp None 152. Which of the following has lowest melting point? LiCl NaCl RbCl KCl None 153. Four gases Hydrogen, Helium, Oxygen and Nitrogen are maintained at same temperature. Then maximum rms velocity is of: Helium Hydrogen Nitrogen Oxygen None 154. Atmospheric pollution is measured in: mol l⁻¹ g l⁻¹ ppm gm None 155. Among noble gases, only Xenon forms stable compound with fluorine while other don't form. This is because of: Low ionization potential of Xenon Large size of Xenon Higher heat of vaporization Higher vapour density None 156. Four different vessels of volume 4L, 3L, 2L and 1L contained He, Cl₂, CO₂ and NH₃ at same pressure and temperature. The ratio of number of atoms present in the vessel is: 1:3:3:1 2:3:3:2 1:2:3:4 4:3:2:1 None 157. Forty ml of 0.1 M ammonia is mixed with 20ml of 0.1M HCl. Find the pH of the resulting mixture. (pKb = 4.74) 2.72 4.74 9.26 5 None 158. Volume of 5% (w/v) Na₂CO₃ required to neutralize 1 lit N/10 H₂SO₄ is: 102.68 112.38 104 106.38 None 159. The correct order of boiling point is: HCOOH < CH₃NH₂ < CH₃OH < CH₃CH₃ CH₃NH₂ < CH₃OH < CH₃COOH < CH₃CH₃ CH₃CH₃ < HCOOH < CH₃OH < CH₃NH₂ CH₃CH₃ < CH₃NH₂ < CH₃OH < HCOOH None 160. Indicator used in titration of weak acid and strong base is: Phenolphthalein (8.2 – 10.0) Litmus paper (5.5 – 7.4) Methyl red (4.2 – 6.3) Methyl orange (3.1 – 4.4) None 161. Anticancer compound is: CO(NH₃)₂Cl₄ Cis[PtF₂Cl₂] Cis[Pt(NH₃)₂Cl₂] CONH₄NO₃ None 162. When excess of KCN is treated with CuSO₄, then the resulting compound is: Cu(CN)₂ K[Cu(CN)₄] K₂[Cu(CN)₄] K₃[Cu(CN)₄] None 163. Compound X reacts with AgNO₃ and gives white precipitate and also gives white precipitate with H₂SO₄. The compound X is: Ba(NO₃)₂ BaCl₂ Pb(NO₃)₂ CuCl₂ None 164. Which radioactive pollutant has recently drawn the attention of the public due to its occurrence in the building materials? Plutonium Radon Radium Thorium None 165. Dipole moment is maximum for: CH₃Cl CH₂Cl₂ CHCl₃ CCl₄ None 166. Which of the following is not responsible for the hardness of water? Na₂SO₄ CaSO₄ MgSO₄ FeSO₄ None 167. Initial concentration of a radioactive substance is 0.08 mol l⁻¹. After what time, its concentration becomes 0.01 mol l⁻¹, if it's half life is 10 min? 30 min 5 min 15 min 60 min None 168. Zn displaces Cu because Zinc has more negative reduction potential than copper Copper has more reduction negative potential than Zinc Zinc is more electronegative Zinc is lower than hydrogen None 169. Which of the following has highest knocking Property? Cyclic chain olefins Branched chain olefins Aromatic compounds Straight chain olefins None 170. The effect which occurs in double bond in presence of attacking reagent is called as: Hyperconjugation Electromeric effect Resonance Inductive effect None 171. Which of the following is more basic? Acetanilide Benzylamine Aniline p-nitro aniline None 172. Carbonyl chloride is changed to Acetone, the organometallic compound used is: Lithium dimethyl cadmium Lithium diethyl cadmium Sodium ethyl chloride Sodium dimethyl chloride None 173. Bakelite is formed by polymerization of: Formaldehyde Acetaldehyde Acetone Carboxylic acid None 174. Anaesthetic agent among the following is: C₂H₄ C₂H₅OH CHCl₃ CH₃OH None 175. Which of the following compound has more acidic hydrogen? Hexane -2, 5-dione Hexane -2, 3-dione Hexane -2, 4-dione Acetone None 176. Benzophenone and Acetophenone are distinguished by: NaOH/I₂ aq. NaHSO₃ 2, 4 - DNP Tollens reagent None 177. A compound 'Y' is treated with acidified K₂Cr₂O₇ and doesn't give 2,4 - DNP test is: Ethanol 2-methyl propan-2-ol Propan -2- ol Propanol None 178. Initial product when tertiary alcohol is oxidized with K₂Cr₂O₇/H⁺ gives: Alkene Aldehyde Ketone Carboxylic acid None 179. Relative to phenol (C₆H₅-OH), Physical properties of lipophilicity: pKₐ of -OH group increases, lipophilicity increases pKₐ of -OH group decreases, lipophilicity increases pKₐ of -OH group increases, lipophilicity decreases pKₐ of -OH group decreases, lipophilicity decrease None 180. An organic compound containing oxygen on oxidation gives only carboxylic acid, with change of molecular mass by 14 units. The organic compound is primary alcohol secondary alcohol Aldehyde ketone None 181. Reaction between CuO and HNO₃ gives CuNO₃ + H₂O Cu(NO₃)₂ + H₂O Cu(NO₃)₂ + H₂ CuNO₃ + H₂ None 182. One property of buffer solution prepared from a weak acid and its sodium salt, is that Its pH is less than the pH of the original acid Its pH is unaffected by the addition of any quantity of H⁺ ions Its pH is greater than the pH of original acid It has pH of 7 None 183. How many atoms are there in one mole of Ca₃(PO₄)₂? 13 5 8 1 None 184. The bonding in magnesium oxide MgO,is Ionic and covalent Metallic and ionic Ionic only Metallic and covalent None 185. The correct sequence of reaction to be performed to convert benzene into m-bromoaniline is Nitration, Bromination , Reduction Bromination , Nitration , Reduction Nitration, Reduction, Bromination Reduction, Nitration, Bromination None 186. The chemical properties of an element are determined by its. Number of proton plus neutrons Number of neutrons Electronic structure Number of protons None 187. Going across the Periodic Table from sodium to aluminium, the radius of the atom increases the melting temperature increases the radius of the metal ion increases the bonding in the element changes from metallic to covalent None 188. When ammonium nitrate crystals dissolve in water, the entropy of the system remains the same falls, because the hydrated ions are more ordered than the solid rises, because the ions are arranged more randomly in the solution than in the crystal rises, because the ions in the crystal become hydrated in the solution None 189. The type of precipitate that is most difficult to filter in quantitative analysis is: Insoluble Gelatinous Curdy Crystalline None 190. A B C D None 191. The flame produced by a compound containing barium in a flame test is Red Yellow Colourless Green None 192. For the equilibrium reaction, A + B → C + D ΔG° = – 340 KJ Reaction is instantaneous Equilibrium constant is more than 1 Change in entropy is negative The reaction is not feasible None 193. The best method for separating a mixture of amino acids in solution is chromatography solvent extraction distillation recrystallization None 194. Fullerene is an allotrope of C S P H None 195. Nylon is a Polyamide Polyester Amide Ester None 196. Number of isotopes of Palladium is 6 7 9 11 None 197. What is the key difference between the models of the atom proposed by Bohr and Rutherford? Bohr's model includes a nucleus, but Rutherford's does not Bohr's model has the atom made up of mostly empty space, but Rutherford's does not Bohr's model includes neutrons, but Rutherford's does not Bohr's model has the electrons moving in fixed energy levels, while in Rutherford's they do not None 198. The reaction A ⇌ B has an equilibrium constant of K = 10⁻⁴. Which one of the following statements is always correct? The reaction will have 50% product B and 50% reactant A at equilibrium The reaction is unfavourable and will not have very much product B at equilibrium The reaction is very favourable and will have mostly product B at equilibrium The equilibrium constant only relates to the speed of a reaction and not to the amount of product formed None 199. Which of the following is not a double salt? Mohr's salt Alum Bleaching powder None None 200. A B C D None
